Our size 312 batteries are compatible with any brand of hearing aid that requires this size. Battery size: 312 (7.9 X 3.6 mm).
Each box of brown size 312/B347 hearing aid batteries contains 10 cards with 6 or 12 batteries per card.
Lifespan: Up to 5 days (for frequent streaming, estimated lifespan of 2.5 days.)
All zinc-air batteries from Beltone are mercury free. They are activated by oxygen and are factory-sealed with a sticker that must be removed before using in your hearing aids. Be sure to store at room temperature in a dry environment.
Contact your Beltone Hearing Care Professional at a location near you for more information.